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12 yellow balls and 14 red balls are placed in an urn. two balls are then drawn in succession without replacement. what is the probability that the first ball drawn is a red ball if the second ball drawn is yellow?

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  1. 3 July, 04:24
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    12 + 14 = 26 balls total

    probability of picking a red one first = 14/26 reduces to 7/13

    then a yellow ball second would be 12/25

    probability of both happening = 7/13 x 12/25 = 84/325
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